/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:34:42,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:34:42,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:34:42,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:34:42,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:34:42,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:34:42,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:34:42,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:34:42,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:34:42,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:34:42,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:34:42,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:34:42,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:34:42,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:34:42,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:34:42,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:34:42,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:34:42,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:34:42,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:34:42,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:34:42,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:34:42,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:34:42,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:34:42,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:34:42,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:34:42,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:34:42,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:34:42,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:34:42,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:34:42,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:34:42,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:34:42,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:34:42,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:34:42,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:34:42,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:34:42,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:34:42,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:34:42,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:34:42,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:34:42,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:34:42,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:34:42,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 07:34:42,883 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:34:42,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:34:42,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:34:42,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:34:42,885 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:34:42,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:34:42,885 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:34:42,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:34:42,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:34:42,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:34:42,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:34:42,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:34:42,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:34:42,887 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:34:42,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:34:42,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:34:42,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:34:42,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:34:42,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:34:42,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:34:42,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:34:42,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:34:42,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:34:42,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:34:42,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:34:42,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:34:42,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:34:42,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:34:42,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:34:42,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:34:43,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:34:43,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:34:43,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:34:43,239 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:34:43,240 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:34:43,240 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-10-14 07:34:43,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2abb44c02/ff80c52b2908482487a97f0619c555a3/FLAG800b58010 [2020-10-14 07:34:43,736 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:34:43,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-10-14 07:34:43,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2abb44c02/ff80c52b2908482487a97f0619c555a3/FLAG800b58010 [2020-10-14 07:34:44,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2abb44c02/ff80c52b2908482487a97f0619c555a3 [2020-10-14 07:34:44,142 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:34:44,144 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:34:44,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:34:44,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:34:44,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:34:44,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:34:44" (1/1) ... [2020-10-14 07:34:44,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1190dd1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44, skipping insertion in model container [2020-10-14 07:34:44,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:34:44" (1/1) ... [2020-10-14 07:34:44,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:34:44,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:34:44,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:34:44,406 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:34:44,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:34:44,440 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:34:44,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44 WrapperNode [2020-10-14 07:34:44,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:34:44,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:34:44,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:34:44,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:34:44,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44" (1/1) ... [2020-10-14 07:34:44,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44" (1/1) ... [2020-10-14 07:34:44,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44" (1/1) ... [2020-10-14 07:34:44,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44" (1/1) ... [2020-10-14 07:34:44,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44" (1/1) ... [2020-10-14 07:34:44,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44" (1/1) ... [2020-10-14 07:34:44,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44" (1/1) ... [2020-10-14 07:34:44,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:34:44,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:34:44,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:34:44,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:34:44,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:34:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:34:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:34:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-14 07:34:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:34:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:34:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:34:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-14 07:34:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:34:44,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:34:44,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:34:44,773 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:34:44,773 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 07:34:44,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:34:44 BoogieIcfgContainer [2020-10-14 07:34:44,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:34:44,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:34:44,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:34:44,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:34:44,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:34:44" (1/3) ... [2020-10-14 07:34:44,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739b4cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:34:44, skipping insertion in model container [2020-10-14 07:34:44,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:34:44" (2/3) ... [2020-10-14 07:34:44,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739b4cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:34:44, skipping insertion in model container [2020-10-14 07:34:44,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:34:44" (3/3) ... [2020-10-14 07:34:44,784 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i15_o15-1.c [2020-10-14 07:34:44,794 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:34:44,801 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:34:44,815 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:34:44,837 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:34:44,837 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:34:44,838 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:34:44,838 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:34:44,838 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:34:44,838 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:34:44,838 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:34:44,839 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:34:44,854 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-14 07:34:44,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 07:34:44,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:44,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:44,862 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:44,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:44,867 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2020-10-14 07:34:44,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:44,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253705585] [2020-10-14 07:34:44,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:44,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:45,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:45,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 07:34:45,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:45,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 07:34:45,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:45,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:45,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:34:45,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:34:45,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:34:45,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:45,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:45,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:45,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:45,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:45,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:34:45,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:45,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:45,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:45,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:45,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:45,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:45,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:45,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:34:45,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:45,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:34:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:34:45,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:45,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:34:45,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253705585] [2020-10-14 07:34:45,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:34:45,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 07:34:45,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598813856] [2020-10-14 07:34:45,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 07:34:45,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:45,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 07:34:45,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:34:45,207 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-10-14 07:34:45,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:45,298 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-10-14 07:34:45,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:34:45,301 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-14 07:34:45,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:45,312 INFO L225 Difference]: With dead ends: 30 [2020-10-14 07:34:45,312 INFO L226 Difference]: Without dead ends: 18 [2020-10-14 07:34:45,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:34:45,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-14 07:34:45,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-14 07:34:45,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-14 07:34:45,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-14 07:34:45,366 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-14 07:34:45,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:45,366 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-14 07:34:45,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 07:34:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-14 07:34:45,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 07:34:45,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:45,369 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:45,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:34:45,374 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:45,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:45,375 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2020-10-14 07:34:45,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:45,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874081414] [2020-10-14 07:34:45,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:45,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:45,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:45,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 07:34:45,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:45,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 07:34:45,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:45,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:34:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:34:45,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:45,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:45,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:45,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:45,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:45,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:34:45,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:45,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:45,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:45,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:45,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:45,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:45,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:45,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 07:34:45,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:45,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:34:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 07:34:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:45,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:45,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:45,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:45,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:45,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:45,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 07:34:45,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:45,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:45,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:45,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:45,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:45,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-14 07:34:45,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874081414] [2020-10-14 07:34:45,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:45,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 07:34:45,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147223069] [2020-10-14 07:34:45,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 07:34:45,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:45,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 07:34:45,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:34:45,767 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2020-10-14 07:34:45,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:45,817 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-14 07:34:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 07:34:45,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-14 07:34:45,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:45,819 INFO L225 Difference]: With dead ends: 25 [2020-10-14 07:34:45,819 INFO L226 Difference]: Without dead ends: 21 [2020-10-14 07:34:45,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:34:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-14 07:34:45,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-14 07:34:45,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-14 07:34:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-14 07:34:45,828 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-10-14 07:34:45,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:45,828 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-14 07:34:45,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 07:34:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-14 07:34:45,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 07:34:45,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:45,830 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:45,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:34:45,831 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:45,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:45,831 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2020-10-14 07:34:45,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:45,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771576052] [2020-10-14 07:34:45,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:45,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:45,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:45,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 07:34:45,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 07:34:45,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:45,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:45,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:34:45,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:45,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 07:34:45,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:46,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:46,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:46,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:46,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:46,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:46,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:34:46,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:46,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:46,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:46,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:46,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:46,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:46,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:46,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:34:46,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 07:34:46,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:46,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:34:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:34:46,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:46,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:46,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:46,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:46,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:46,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:46,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:34:46,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:46,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:34:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:34:46,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:46,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:46,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:46,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:46,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:46,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:46,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:34:46,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:46,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:46,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:46,246 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 07:34:46,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771576052] [2020-10-14 07:34:46,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:46,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 07:34:46,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453088510] [2020-10-14 07:34:46,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:34:46,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:46,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:34:46,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:34:46,249 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-10-14 07:34:46,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:46,315 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-14 07:34:46,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:34:46,316 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-14 07:34:46,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:46,317 INFO L225 Difference]: With dead ends: 28 [2020-10-14 07:34:46,317 INFO L226 Difference]: Without dead ends: 24 [2020-10-14 07:34:46,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:34:46,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-14 07:34:46,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-14 07:34:46,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-14 07:34:46,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-14 07:34:46,325 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-10-14 07:34:46,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:46,326 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-14 07:34:46,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:34:46,326 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-14 07:34:46,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 07:34:46,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:46,328 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:46,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:34:46,328 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:46,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:46,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2020-10-14 07:34:46,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:46,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217103501] [2020-10-14 07:34:46,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:46,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:46,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:46,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:34:46,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:46,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 07:34:46,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:46,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:46,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:34:46,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:46,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:34:46,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:46,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:46,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:46,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:46,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:46,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:34:46,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:46,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:46,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:46,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:46,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:46,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:46,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:46,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:46,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:34:46,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:46,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 07:34:46,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:46,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:46,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:34:46,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 07:34:46,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:34:46,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:46,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:46,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:46,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:34:46,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:46,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 07:34:46,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:46,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:46,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:34:46,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:46,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:34:46,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:46,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:46,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:46,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:46,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:46,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:46,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 07:34:46,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:46,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:34:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:34:46,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:46,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:46,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:46,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:46,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:46,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:46,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:34:46,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:46,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:46,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:46,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:46,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:34:46,871 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 07:34:46,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217103501] [2020-10-14 07:34:46,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:46,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:34:46,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008018515] [2020-10-14 07:34:46,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:34:46,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:46,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:34:46,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:34:46,877 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 10 states. [2020-10-14 07:34:46,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:46,990 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-14 07:34:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:34:46,991 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-10-14 07:34:46,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:46,993 INFO L225 Difference]: With dead ends: 31 [2020-10-14 07:34:46,993 INFO L226 Difference]: Without dead ends: 27 [2020-10-14 07:34:46,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:34:46,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-14 07:34:47,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-14 07:34:47,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-14 07:34:47,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-14 07:34:47,010 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-10-14 07:34:47,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:47,011 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-14 07:34:47,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:34:47,013 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-14 07:34:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-14 07:34:47,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:47,015 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:47,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:34:47,016 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:47,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:47,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1080764669, now seen corresponding path program 4 times [2020-10-14 07:34:47,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:47,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766271185] [2020-10-14 07:34:47,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:47,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:47,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 07:34:47,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:47,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 07:34:47,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:47,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:34:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 07:34:47,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:47,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:47,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:47,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:47,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:47,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:34:47,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:47,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:47,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:47,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:47,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:47,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:47,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:34:47,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:47,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 07:34:47,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:47,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:47,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:34:47,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:47,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 07:34:47,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:47,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:47,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:47,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:34:47,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:47,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 07:34:47,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:47,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:47,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:34:47,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:47,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:34:47,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:47,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:47,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:47,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:34:47,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:47,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 07:34:47,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:47,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:47,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:34:47,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:47,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:34:47,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:47,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:47,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:47,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:47,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:47,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:34:47,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:47,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:47,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:34:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:34:47,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:47,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:47,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:47,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:47,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:47,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:34:47,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:47,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:47,483 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 07:34:47,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766271185] [2020-10-14 07:34:47,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:47,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:34:47,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078492352] [2020-10-14 07:34:47,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:34:47,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:47,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:34:47,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:34:47,485 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-10-14 07:34:47,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:47,568 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-14 07:34:47,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 07:34:47,568 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-10-14 07:34:47,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:47,570 INFO L225 Difference]: With dead ends: 34 [2020-10-14 07:34:47,570 INFO L226 Difference]: Without dead ends: 30 [2020-10-14 07:34:47,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:34:47,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-14 07:34:47,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-14 07:34:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-14 07:34:47,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-14 07:34:47,578 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-10-14 07:34:47,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:47,578 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-14 07:34:47,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:34:47,578 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-14 07:34:47,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 07:34:47,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:47,580 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:47,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:34:47,580 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:47,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:47,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1752970513, now seen corresponding path program 5 times [2020-10-14 07:34:47,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:47,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570929410] [2020-10-14 07:34:47,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:47,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:47,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 07:34:47,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:47,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 07:34:47,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:47,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:47,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 07:34:47,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:47,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:34:47,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:47,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:47,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:47,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:47,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:47,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:34:47,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:47,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:47,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:47,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:47,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:47,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:47,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:47,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:47,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:34:47,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:47,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 07:34:47,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:47,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 07:34:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 07:34:47,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:47,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:47,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:48,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:48,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:34:48,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:48,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 07:34:48,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:48,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:48,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:34:48,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:34:48,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:48,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:48,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:48,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:48,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:34:48,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:48,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 07:34:48,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:48,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:48,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:34:48,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:48,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:34:48,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:48,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:48,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:48,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:48,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:34:48,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:48,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 07:34:48,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:48,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:34:48,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:48,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:34:48,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:48,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:48,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:48,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:48,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:48,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:48,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:34:48,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:48,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:48,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:34:48,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:48,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:34:48,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:48,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:48,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:48,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:48,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:48,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:48,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:34:48,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:48,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:48,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 11 proven. 44 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 07:34:48,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570929410] [2020-10-14 07:34:48,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:48,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 07:34:48,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837592797] [2020-10-14 07:34:48,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:34:48,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:48,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:34:48,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:34:48,296 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-10-14 07:34:48,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:48,412 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-14 07:34:48,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 07:34:48,413 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 43 [2020-10-14 07:34:48,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:48,414 INFO L225 Difference]: With dead ends: 37 [2020-10-14 07:34:48,414 INFO L226 Difference]: Without dead ends: 33 [2020-10-14 07:34:48,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:34:48,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-14 07:34:48,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-14 07:34:48,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-14 07:34:48,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-14 07:34:48,422 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-10-14 07:34:48,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:48,422 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-14 07:34:48,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:34:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-14 07:34:48,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 07:34:48,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:48,424 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:48,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:34:48,425 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:48,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:48,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1590630787, now seen corresponding path program 6 times [2020-10-14 07:34:48,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:48,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760805854] [2020-10-14 07:34:48,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:48,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:48,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:48,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 07:34:48,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:48,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 07:34:48,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:48,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 07:34:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 07:34:48,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:48,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:48,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:48,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:48,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:48,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:48,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:34:48,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:48,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:48,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:48,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:48,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:48,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:48,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:48,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:48,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:48,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:34:48,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:48,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 07:34:48,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:48,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:48,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 07:34:48,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:48,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 07:34:48,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:48,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:48,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:48,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:48,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:34:48,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:48,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 07:34:48,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:48,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:34:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:48,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:34:48,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:48,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:48,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:49,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:49,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:34:49,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:49,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 07:34:49,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:49,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:49,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:34:49,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:49,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:34:49,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:34:49,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:49,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:49,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:49,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:34:49,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:49,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 07:34:49,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:49,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:34:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:34:49,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:49,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:49,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:49,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:49,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:34:49,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:49,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 07:34:49,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:49,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:34:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:34:49,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:49,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:49,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:49,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:49,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:34:49,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:49,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:34:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:34:49,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:49,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:49,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:49,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:49,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:49,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:49,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:34:49,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:49,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:49,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:49,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:49,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:49,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:49,354 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 10 proven. 73 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-14 07:34:49,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760805854] [2020-10-14 07:34:49,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:49,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 07:34:49,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032226795] [2020-10-14 07:34:49,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:34:49,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:49,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:34:49,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:34:49,358 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 13 states. [2020-10-14 07:34:49,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:49,486 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-14 07:34:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 07:34:49,487 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 49 [2020-10-14 07:34:49,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:49,488 INFO L225 Difference]: With dead ends: 40 [2020-10-14 07:34:49,489 INFO L226 Difference]: Without dead ends: 36 [2020-10-14 07:34:49,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:34:49,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-14 07:34:49,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-14 07:34:49,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-14 07:34:49,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-10-14 07:34:49,500 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-10-14 07:34:49,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:49,504 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-10-14 07:34:49,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:34:49,504 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-10-14 07:34:49,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 07:34:49,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:49,507 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:49,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:34:49,507 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:49,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:49,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1532150511, now seen corresponding path program 7 times [2020-10-14 07:34:49,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:49,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530999537] [2020-10-14 07:34:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:49,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:49,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:49,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 07:34:49,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:49,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-14 07:34:49,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:49,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 07:34:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 07:34:49,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:49,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:49,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:49,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:49,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:49,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:34:49,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:49,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:49,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:49,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:49,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:50,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:50,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:34:50,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:50,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-14 07:34:50,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:50,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 07:34:50,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:50,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 07:34:50,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:34:50,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:50,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:50,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:50,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:34:50,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:50,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 07:34:50,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:50,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:50,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:34:50,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:50,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:34:50,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:50,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:50,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:50,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:50,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:34:50,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:50,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 07:34:50,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:50,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:50,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:34:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:34:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:50,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:50,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:50,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:50,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:34:50,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:50,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 07:34:50,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:50,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:50,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:34:50,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:50,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:34:50,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:50,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:50,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:50,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:50,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:34:50,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:50,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 07:34:50,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:50,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:34:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:34:50,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:50,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:50,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:50,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:50,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:34:50,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:50,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 07:34:50,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:50,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:50,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:34:50,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:50,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:34:50,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:34:50,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:50,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:50,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:50,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:50,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:50,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:34:50,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:50,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:34:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:34:50,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:34:50,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:50,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:50,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:50,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:50,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:50,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:34:50,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:50,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:50,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:50,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:34:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 11 proven. 99 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-14 07:34:50,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530999537] [2020-10-14 07:34:50,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:50,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 07:34:50,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161130622] [2020-10-14 07:34:50,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 07:34:50,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:50,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 07:34:50,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:34:50,896 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 14 states. [2020-10-14 07:34:51,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:51,056 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-14 07:34:51,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:34:51,057 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-10-14 07:34:51,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:51,058 INFO L225 Difference]: With dead ends: 43 [2020-10-14 07:34:51,058 INFO L226 Difference]: Without dead ends: 39 [2020-10-14 07:34:51,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=300, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:34:51,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-14 07:34:51,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-14 07:34:51,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-14 07:34:51,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-14 07:34:51,066 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-10-14 07:34:51,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:51,067 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-14 07:34:51,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 07:34:51,067 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-14 07:34:51,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 07:34:51,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:51,068 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:51,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:34:51,069 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:51,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:51,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1140618237, now seen corresponding path program 8 times [2020-10-14 07:34:51,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:51,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115222795] [2020-10-14 07:34:51,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:51,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:51,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:51,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 07:34:51,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:51,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-14 07:34:51,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:51,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:51,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 07:34:51,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:51,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 07:34:51,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:51,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:51,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:51,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:51,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:51,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:51,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:34:51,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:51,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:51,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:51,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:51,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:51,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:51,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:51,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:51,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:51,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:34:51,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:51,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-14 07:34:51,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:51,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 07:34:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 07:34:51,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:51,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:51,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:51,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:51,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:34:51,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:51,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-14 07:34:51,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:51,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:51,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:34:51,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:51,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:34:51,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:51,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:51,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:52,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:52,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:34:52,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:52,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 07:34:52,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:52,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:34:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:52,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:34:52,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:52,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:52,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:52,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:52,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:34:52,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:52,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 07:34:52,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:52,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:34:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:34:52,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:52,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:52,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:52,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:52,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:34:52,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:52,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 07:34:52,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:52,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:34:52,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:52,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:34:52,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:52,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:52,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:52,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:52,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:34:52,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:52,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 07:34:52,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:52,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:52,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:34:52,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:52,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:34:52,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:52,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:52,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:52,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:52,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:34:52,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:52,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 07:34:52,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:52,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:52,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:34:52,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:52,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:34:52,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:52,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:52,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:52,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:52,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:52,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:52,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:34:52,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:52,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:52,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:34:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:34:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:52,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:52,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:52,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:52,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:52,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:52,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:34:52,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:52,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:52,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:52,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:52,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:52,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:52,525 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 12 proven. 128 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 07:34:52,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115222795] [2020-10-14 07:34:52,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:52,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 07:34:52,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75455407] [2020-10-14 07:34:52,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:34:52,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:52,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:34:52,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:34:52,528 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 15 states. [2020-10-14 07:34:52,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:52,675 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-14 07:34:52,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:34:52,675 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2020-10-14 07:34:52,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:52,677 INFO L225 Difference]: With dead ends: 46 [2020-10-14 07:34:52,677 INFO L226 Difference]: Without dead ends: 42 [2020-10-14 07:34:52,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552 [2020-10-14 07:34:52,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-14 07:34:52,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-14 07:34:52,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-14 07:34:52,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-14 07:34:52,684 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-10-14 07:34:52,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:52,684 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-14 07:34:52,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:34:52,684 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-14 07:34:52,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:34:52,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:52,686 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:52,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:34:52,686 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:52,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:52,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1749177617, now seen corresponding path program 9 times [2020-10-14 07:34:52,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:52,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289494217] [2020-10-14 07:34:52,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:52,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:52,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:52,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 07:34:52,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:52,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-14 07:34:52,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:52,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 07:34:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 07:34:52,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:52,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:52,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:52,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:52,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:52,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:52,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:34:52,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:52,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:52,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:52,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:52,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:52,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:52,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:53,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:53,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:53,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:34:53,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:53,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-14 07:34:53,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:53,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:53,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 07:34:53,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:53,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:34:53,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:53,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:53,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:53,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:53,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:34:53,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:53,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-14 07:34:53,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:53,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:53,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:34:53,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:53,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:34:53,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:53,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:53,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:53,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:53,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:34:53,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:53,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 07:34:53,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:53,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:53,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:34:53,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:53,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:34:53,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:53,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:53,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:53,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:53,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:34:53,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:53,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 07:34:53,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:53,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:53,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:34:53,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:53,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:34:53,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:53,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:53,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:53,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:53,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:34:53,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:53,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 07:34:53,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:53,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:53,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:34:53,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:53,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:34:53,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:53,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:53,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:54,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:54,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:34:54,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:54,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 07:34:54,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:54,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:54,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:34:54,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:54,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:34:54,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:54,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:54,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:54,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:54,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:34:54,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:54,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 07:34:54,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:54,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:34:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:34:54,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:54,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:54,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:54,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:54,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:34:54,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:54,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 07:34:54,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:54,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:34:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:34:54,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:54,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:54,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:54,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:54,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:54,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:54,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:34:54,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:54,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:54,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:34:54,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:34:54,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:54,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:54,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:54,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:54,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:54,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:34:54,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:54,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:54,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:54,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:54,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:34:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 18 proven. 168 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-14 07:34:54,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289494217] [2020-10-14 07:34:54,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:54,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:34:54,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33701697] [2020-10-14 07:34:54,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:34:54,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:54,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:34:54,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:34:54,328 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-10-14 07:34:54,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:54,569 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-14 07:34:54,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:34:54,570 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 67 [2020-10-14 07:34:54,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:54,572 INFO L225 Difference]: With dead ends: 49 [2020-10-14 07:34:54,572 INFO L226 Difference]: Without dead ends: 45 [2020-10-14 07:34:54,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:34:54,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-14 07:34:54,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-14 07:34:54,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-14 07:34:54,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-14 07:34:54,588 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-10-14 07:34:54,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:54,588 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-14 07:34:54,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:34:54,589 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-14 07:34:54,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 07:34:54,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:54,590 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:54,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:34:54,593 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:54,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:54,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1580609155, now seen corresponding path program 10 times [2020-10-14 07:34:54,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:54,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257384900] [2020-10-14 07:34:54,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:54,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:54,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:54,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 07:34:54,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:54,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-14 07:34:54,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:54,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 07:34:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 07:34:54,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:54,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:54,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:54,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:54,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:54,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:54,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:34:54,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:54,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:54,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:54,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:54,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:54,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:55,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:55,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:34:55,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:55,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-14 07:34:55,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:55,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:55,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 07:34:55,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:55,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 07:34:55,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:55,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:55,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:55,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:55,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:34:55,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:55,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 07:34:55,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:55,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:34:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:34:55,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:55,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:55,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:55,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:55,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:34:55,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:55,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 07:34:55,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:55,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:34:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:34:55,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:55,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:55,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:55,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:55,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:34:55,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 07:34:55,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:55,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:34:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:34:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:55,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:55,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:56,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:56,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:34:56,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:56,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 07:34:56,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:56,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:34:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:34:56,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:56,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:56,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:56,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:56,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:34:56,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:56,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 07:34:56,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:56,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:56,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:34:56,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:56,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:34:56,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:56,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:56,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:56,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:56,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:34:56,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:56,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 07:34:56,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:56,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:56,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:34:56,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:56,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:34:56,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:56,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:56,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:56,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:56,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:34:56,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:56,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 07:34:56,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:56,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:56,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:34:56,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:56,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:34:56,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:56,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:56,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:56,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:56,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:34:56,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:56,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:34:56,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:56,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:56,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:34:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:34:56,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:56,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:56,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:56,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:56,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:56,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:56,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:34:56,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:56,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:34:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:34:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:56,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:56,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:56,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:56,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:56,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:56,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:34:56,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:56,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:56,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:56,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:34:56,408 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 30 proven. 177 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-10-14 07:34:56,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257384900] [2020-10-14 07:34:56,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:56,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 07:34:56,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855018019] [2020-10-14 07:34:56,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 07:34:56,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:56,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 07:34:56,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:34:56,413 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 16 states. [2020-10-14 07:34:56,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:56,610 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-14 07:34:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:34:56,611 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-10-14 07:34:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:56,612 INFO L225 Difference]: With dead ends: 52 [2020-10-14 07:34:56,613 INFO L226 Difference]: Without dead ends: 48 [2020-10-14 07:34:56,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:34:56,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-14 07:34:56,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-14 07:34:56,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-14 07:34:56,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-14 07:34:56,631 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-10-14 07:34:56,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:56,631 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-14 07:34:56,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 07:34:56,631 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-14 07:34:56,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 07:34:56,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:56,633 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:56,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:34:56,635 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:56,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:56,636 INFO L82 PathProgramCache]: Analyzing trace with hash -223837457, now seen corresponding path program 11 times [2020-10-14 07:34:56,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:56,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572464408] [2020-10-14 07:34:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:56,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:56,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:56,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 07:34:56,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:56,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-14 07:34:56,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:56,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:56,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 07:34:56,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:56,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:34:56,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:56,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:56,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:56,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:56,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:56,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:56,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:34:56,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:56,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:56,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:56,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:56,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:57,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:57,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:34:57,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:57,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-14 07:34:57,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:57,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:57,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 07:34:57,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:57,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 07:34:57,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:57,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:57,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:57,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:57,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:34:57,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:57,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-14 07:34:57,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:57,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:57,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:34:57,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:57,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:34:57,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:57,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:57,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:57,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:57,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:34:57,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:57,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 07:34:57,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:57,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:34:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:34:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:57,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:57,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:58,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:58,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:34:58,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:58,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 07:34:58,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:58,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:34:58,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:58,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:34:58,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:58,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:58,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:58,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:58,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:34:58,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:58,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 07:34:58,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:58,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:58,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:34:58,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:58,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:34:58,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:58,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:58,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:58,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:58,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:34:58,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:58,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 07:34:58,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:58,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:34:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:34:58,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:58,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:58,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:58,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:58,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:34:58,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:58,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 07:34:58,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:58,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:58,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:34:58,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:58,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:34:58,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:58,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:58,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:58,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:58,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:34:58,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:58,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 07:34:58,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:58,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:58,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:34:58,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:58,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:34:58,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:58,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:58,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:58,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:58,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:34:58,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:58,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 07:34:58,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:58,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:58,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:34:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:34:58,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:58,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:58,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:58,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:58,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:34:58,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:58,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:34:58,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:58,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:34:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:34:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:58,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:58,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:58,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:58,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:34:58,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:58,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:34:58,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:58,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:34:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:34:58,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:58,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:58,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:34:58,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:34:58,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:58,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:34:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:34:58,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 25 proven. 225 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-14 07:34:58,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572464408] [2020-10-14 07:34:58,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:34:58,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:34:58,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649265329] [2020-10-14 07:34:58,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:34:58,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:34:58,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:34:58,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:34:58,787 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 17 states. [2020-10-14 07:34:58,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:34:58,961 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-14 07:34:58,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:34:58,961 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2020-10-14 07:34:58,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:34:58,962 INFO L225 Difference]: With dead ends: 55 [2020-10-14 07:34:58,963 INFO L226 Difference]: Without dead ends: 51 [2020-10-14 07:34:58,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-10-14 07:34:58,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-14 07:34:58,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-14 07:34:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-14 07:34:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-14 07:34:58,974 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-10-14 07:34:58,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:34:58,974 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-14 07:34:58,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:34:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-14 07:34:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 07:34:58,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:34:58,978 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:34:58,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:34:58,978 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:34:58,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:34:58,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1653931773, now seen corresponding path program 12 times [2020-10-14 07:34:58,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:34:58,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573929946] [2020-10-14 07:34:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:34:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:59,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:59,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:59,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 07:34:59,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:59,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-14 07:34:59,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:59,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:59,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 07:34:59,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:34:59,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 07:34:59,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:59,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:34:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:59,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:59,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:59,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:34:59,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:59,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:34:59,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:59,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:34:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:34:59,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:34:59,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:34:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:59,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:59,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:59,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:34:59,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-10-14 07:34:59,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:59,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 07:34:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:34:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 07:34:59,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:34:59,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:34:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:34:59,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:34:59,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:34:59,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:34:59,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:34:59,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-14 07:34:59,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:34:59,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:34:59,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:34:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:34:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:34:59,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:00,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:00,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:00,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:00,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:35:00,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:00,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-14 07:35:00,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:00,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:35:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:35:00,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:00,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:00,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:00,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:00,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:35:00,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:00,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-14 07:35:00,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:00,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:00,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:35:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:35:00,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:00,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:00,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:00,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:00,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:35:00,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:00,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 07:35:00,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:00,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:35:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:35:00,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:00,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:00,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:00,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:00,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:35:00,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 07:35:00,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:00,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:35:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:35:00,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:00,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:00,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:00,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:00,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:35:00,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:00,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 07:35:00,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:00,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:00,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:35:00,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:35:00,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:00,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:00,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:01,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:01,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:35:01,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:01,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 07:35:01,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:01,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:35:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:35:01,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:01,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:01,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:01,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:01,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:35:01,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:01,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 07:35:01,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:01,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:01,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:35:01,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:01,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:35:01,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:01,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:01,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:01,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:01,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:35:01,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:01,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 07:35:01,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:01,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:01,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:35:01,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:01,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:35:01,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:01,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:01,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:01,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:01,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:35:01,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:01,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:35:01,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:01,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:01,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:35:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:35:01,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:01,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:01,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:01,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:01,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:35:01,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:01,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:35:01,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:01,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:35:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:35:01,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:01,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:01,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:01,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:01,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:35:01,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:01,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:35:01,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:01,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:35:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:35:01,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:01,326 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 29 proven. 256 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-10-14 07:35:01,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573929946] [2020-10-14 07:35:01,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:35:01,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 07:35:01,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090582705] [2020-10-14 07:35:01,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 07:35:01,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:35:01,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 07:35:01,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:35:01,329 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 18 states. [2020-10-14 07:35:01,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:35:01,498 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-14 07:35:01,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:35:01,499 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-10-14 07:35:01,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:35:01,500 INFO L225 Difference]: With dead ends: 58 [2020-10-14 07:35:01,500 INFO L226 Difference]: Without dead ends: 54 [2020-10-14 07:35:01,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-10-14 07:35:01,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-14 07:35:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-14 07:35:01,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-14 07:35:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-14 07:35:01,506 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-10-14 07:35:01,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:35:01,507 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-14 07:35:01,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 07:35:01,507 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-14 07:35:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 07:35:01,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:35:01,508 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:35:01,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 07:35:01,508 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:35:01,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:35:01,509 INFO L82 PathProgramCache]: Analyzing trace with hash -218674449, now seen corresponding path program 13 times [2020-10-14 07:35:01,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:35:01,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67763313] [2020-10-14 07:35:01,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:35:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:01,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:01,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:01,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 07:35:01,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:01,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-10-14 07:35:01,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:01,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:01,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 07:35:01,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:35:01,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:35:01,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:01,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:35:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:01,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:01,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:01,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:35:01,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:01,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:35:01,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:01,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:35:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:01,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:35:01,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:01,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:35:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:01,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:02,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:02,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:35:02,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:02,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-14 07:35:02,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:02,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:02,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 07:35:02,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:35:02,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 07:35:02,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:02,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:02,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:02,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:02,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:35:02,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:02,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-14 07:35:02,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:02,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:35:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:35:02,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:02,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:02,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:02,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:02,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:35:02,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:02,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 07:35:02,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:02,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:02,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:35:02,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:02,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:35:02,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:02,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:02,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:03,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:03,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:35:03,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:03,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 07:35:03,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:03,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:35:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:35:03,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:03,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:03,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:03,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:03,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:35:03,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:03,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-14 07:35:03,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:03,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:35:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:35:03,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:03,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:03,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:03,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:03,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:35:03,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:35:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:35:03,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:03,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:03,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:03,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:03,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:35:03,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:03,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 07:35:03,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:03,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:35:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:35:03,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:03,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:03,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:03,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:03,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:35:03,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:03,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 07:35:03,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:03,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:35:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:35:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:03,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:03,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:03,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:03,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:35:03,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:03,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 07:35:03,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:03,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:03,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:35:03,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:03,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:35:03,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:03,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:03,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:04,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:04,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:35:04,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:04,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 07:35:04,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:04,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:35:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:35:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:04,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:04,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:04,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:04,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:35:04,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:04,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:35:04,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:04,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:35:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:35:04,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:04,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:04,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:04,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:04,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:35:04,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:35:04,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:04,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:35:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:35:04,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:04,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:04,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:04,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:04,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:35:04,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:04,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:35:04,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:04,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:35:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:35:04,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:04,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:04,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:04,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:04,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:35:04,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:04,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:35:04,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:04,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:35:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:35:04,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:04,241 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 30 proven. 315 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-14 07:35:04,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67763313] [2020-10-14 07:35:04,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:35:04,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 07:35:04,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941928838] [2020-10-14 07:35:04,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 07:35:04,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:35:04,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 07:35:04,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:35:04,243 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 19 states. [2020-10-14 07:35:04,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:35:04,445 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-14 07:35:04,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:35:04,447 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 91 [2020-10-14 07:35:04,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:35:04,448 INFO L225 Difference]: With dead ends: 61 [2020-10-14 07:35:04,448 INFO L226 Difference]: Without dead ends: 57 [2020-10-14 07:35:04,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 07:35:04,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-14 07:35:04,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-14 07:35:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-14 07:35:04,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-14 07:35:04,456 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-10-14 07:35:04,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:35:04,456 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-14 07:35:04,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 07:35:04,457 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-14 07:35:04,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:35:04,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:35:04,458 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:35:04,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 07:35:04,458 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:35:04,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:35:04,458 INFO L82 PathProgramCache]: Analyzing trace with hash 492436605, now seen corresponding path program 14 times [2020-10-14 07:35:04,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:35:04,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119932970] [2020-10-14 07:35:04,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:35:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:04,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:04,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:04,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 07:35:04,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:04,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-14 07:35:04,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:04,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 07:35:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:35:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 07:35:04,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:04,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:35:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:04,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:04,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:04,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:35:04,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:04,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:35:04,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:04,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:04,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:35:04,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:04,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:35:04,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:04,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:35:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:04,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:05,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:05,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:35:05,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:05,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-14 07:35:05,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:05,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:05,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 07:35:05,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:35:05,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 07:35:05,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:05,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:05,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:05,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:05,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:35:05,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:05,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-14 07:35:05,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:05,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:35:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 07:35:05,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:05,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:05,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:05,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:05,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:35:05,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:05,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 07:35:05,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:05,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:35:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:05,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:35:05,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:05,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:05,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:05,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:05,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:35:05,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:05,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 07:35:05,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:05,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:35:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:35:05,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:05,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:05,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:35:06,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-14 07:35:06,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:35:06,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:35:06,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:06,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:06,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:35:06,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 07:35:06,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:35:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:35:06,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:06,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:06,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:35:06,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 07:35:06,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:35:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:35:06,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:06,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:06,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:35:06,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 07:35:06,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:35:06,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:35:06,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:06,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:06,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:35:06,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 07:35:06,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:35:06,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:35:06,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:06,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:06,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:35:06,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 07:35:06,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:35:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:35:06,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:06,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:06,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:35:06,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:35:06,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:35:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:35:06,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:06,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:06,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:35:06,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 07:35:06,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:35:06,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:35:06,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:06,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:06,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:35:06,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:35:06,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:35:06,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:35:06,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:06,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:06,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:35:06,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:35:06,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:35:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:35:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:06,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:06,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:06,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:06,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:35:06,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:06,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:35:06,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:06,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:35:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:06,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:35:06,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 89 proven. 317 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2020-10-14 07:35:06,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119932970] [2020-10-14 07:35:06,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:35:06,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 07:35:06,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599845037] [2020-10-14 07:35:06,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 07:35:06,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:35:06,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 07:35:06,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:35:06,876 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 20 states. [2020-10-14 07:35:07,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:35:07,101 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-14 07:35:07,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 07:35:07,103 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-10-14 07:35:07,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:35:07,103 INFO L225 Difference]: With dead ends: 64 [2020-10-14 07:35:07,104 INFO L226 Difference]: Without dead ends: 60 [2020-10-14 07:35:07,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 07:35:07,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-14 07:35:07,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-14 07:35:07,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-14 07:35:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-10-14 07:35:07,111 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-10-14 07:35:07,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:35:07,111 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-10-14 07:35:07,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 07:35:07,111 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-10-14 07:35:07,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 07:35:07,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:35:07,112 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:35:07,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 07:35:07,113 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:35:07,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:35:07,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1083048687, now seen corresponding path program 15 times [2020-10-14 07:35:07,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:35:07,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449189588] [2020-10-14 07:35:07,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:35:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:07,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:07,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:07,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:35:07,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:07,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-14 07:35:07,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:07,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 07:35:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 07:35:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 07:35:07,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:07,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:35:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:07,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:07,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:07,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:35:07,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:07,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:35:07,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:07,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:35:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:35:07,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:07,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:35:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:07,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:08,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:08,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:35:08,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:08,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-14 07:35:08,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:08,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:35:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 07:35:08,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:08,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:08,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:08,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:08,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:35:08,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-14 07:35:08,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:08,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:35:08,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:08,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 07:35:08,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:08,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:08,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:08,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:08,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:35:08,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:08,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-14 07:35:08,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:08,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:35:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 07:35:08,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:08,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:08,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:09,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:09,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:35:09,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:09,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 07:35:09,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:09,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:09,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:35:09,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:09,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:35:09,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:09,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:09,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:09,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:09,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:35:09,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:09,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-14 07:35:09,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:09,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:35:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:09,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 07:35:09,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:09,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:09,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:09,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:09,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:35:09,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:09,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 07:35:09,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:09,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:35:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 07:35:09,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:09,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:09,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:09,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:09,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:35:09,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:09,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 07:35:09,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:09,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:09,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:35:09,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:09,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:35:09,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:09,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:09,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:10,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:10,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:35:10,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:10,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 07:35:10,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:10,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:10,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:35:10,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 07:35:10,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:10,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:10,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:10,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:10,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:35:10,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 07:35:10,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:10,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:35:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:35:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:10,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:10,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:10,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:10,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:35:10,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:10,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 07:35:10,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:10,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:35:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 07:35:10,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:10,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:10,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:10,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:10,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:35:10,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:10,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 07:35:10,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:10,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:10,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:35:10,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:35:10,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:10,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:10,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:10,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:10,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:35:10,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:10,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:35:10,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:10,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:35:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:35:10,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:10,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:10,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:10,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:10,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:35:10,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:10,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:35:10,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:10,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:10,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:35:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:35:10,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:10,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:10,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:10,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:10,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:35:10,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:10,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:35:10,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:10,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:35:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:35:10,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:10,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:10,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:10,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:10,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:35:10,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:10,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:35:10,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:10,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:35:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:35:10,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:10,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:10,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:10,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:10,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:35:10,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:10,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:35:10,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:10,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:35:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:35:10,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:10,996 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-10-14 07:35:10,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449189588] [2020-10-14 07:35:10,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:35:10,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-14 07:35:10,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021407661] [2020-10-14 07:35:10,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-14 07:35:10,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:35:10,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-14 07:35:10,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 07:35:10,999 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 35 states. [2020-10-14 07:35:11,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:35:11,557 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-14 07:35:11,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 07:35:11,557 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 103 [2020-10-14 07:35:11,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:35:11,558 INFO L225 Difference]: With dead ends: 67 [2020-10-14 07:35:11,558 INFO L226 Difference]: Without dead ends: 63 [2020-10-14 07:35:11,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 07:35:11,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-14 07:35:11,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-14 07:35:11,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-14 07:35:11,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-10-14 07:35:11,565 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-10-14 07:35:11,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:35:11,566 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-10-14 07:35:11,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-14 07:35:11,566 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-10-14 07:35:11,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 07:35:11,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:35:11,567 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:35:11,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 07:35:11,568 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:35:11,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:35:11,568 INFO L82 PathProgramCache]: Analyzing trace with hash 404015613, now seen corresponding path program 16 times [2020-10-14 07:35:11,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:35:11,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954145233] [2020-10-14 07:35:11,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:35:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:11,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:11,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:12,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:12,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 07:35:12,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:35:12,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 629 [2020-10-14 07:35:12,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:12,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 07:35:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:35:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 07:35:12,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:35:12,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:35:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:12,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:12,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:12,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:35:12,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:12,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:35:12,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:12,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:35:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:35:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:12,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:35:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:12,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:12,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:12,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 07:35:12,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:12,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-14 07:35:12,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:12,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:12,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 07:35:12,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:35:12,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 07:35:12,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:12,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:12,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:13,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:13,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:35:13,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:13,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 641 [2020-10-14 07:35:13,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:13,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 07:35:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 07:35:13,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:13,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:13,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:13,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:13,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:35:13,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:13,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-14 07:35:13,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:13,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:13,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:35:13,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 07:35:13,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:13,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:13,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:13,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:13,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:35:13,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:13,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-14 07:35:14,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:14,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:14,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:35:14,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 07:35:14,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:14,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:14,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:14,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:14,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:35:14,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:14,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-10-14 07:35:14,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:14,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:35:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:35:14,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:14,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:14,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:14,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:14,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:35:14,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:14,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-14 07:35:14,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:14,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:35:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:35:14,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:14,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:14,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:14,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:14,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:35:14,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:14,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 07:35:14,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:14,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:14,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:35:14,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:14,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:35:14,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:14,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:14,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:15,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:15,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:35:15,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:15,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 07:35:15,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:15,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:35:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:35:15,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:15,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:15,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:15,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:15,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:35:15,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:15,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 07:35:15,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:15,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:15,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:35:15,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:15,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:35:15,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:15,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:15,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:15,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:15,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:35:15,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:15,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 07:35:15,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:15,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:35:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:15,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:35:15,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:15,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:15,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:15,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:15,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:35:15,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:15,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 07:35:15,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:15,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:15,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:35:15,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:15,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:35:15,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:15,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:15,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:15,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:15,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:35:15,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 07:35:15,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:15,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:35:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:35:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:15,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:15,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:15,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:15,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:35:15,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:15,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 07:35:15,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:15,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:35:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:35:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:15,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:15,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:15,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:15,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:35:15,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:15,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 07:35:15,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:15,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:35:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:35:15,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:35:15,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:15,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:15,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:15,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:35:15,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:15,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:35:15,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:15,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:15,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:35:15,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:35:15,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:15,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:15,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:15,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:15,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:35:15,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:15,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:35:15,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:15,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:35:15,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:15,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:35:15,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:15,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:35:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:35:15,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:35:15,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:35:15,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:35:15,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:35:15,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:35:15,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:35:15,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:35:15,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:35:15,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:35:15,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:35:15,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:35:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 486 proven. 39 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-10-14 07:35:15,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954145233] [2020-10-14 07:35:15,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:35:15,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 07:35:15,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479348258] [2020-10-14 07:35:15,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 07:35:15,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:35:15,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 07:35:15,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=284, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:35:15,968 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 22 states. [2020-10-14 07:35:16,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:35:16,319 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-10-14 07:35:16,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 07:35:16,320 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 109 [2020-10-14 07:35:16,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:35:16,321 INFO L225 Difference]: With dead ends: 63 [2020-10-14 07:35:16,321 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 07:35:16,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=535, Invalid=947, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 07:35:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 07:35:16,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 07:35:16,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 07:35:16,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 07:35:16,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2020-10-14 07:35:16,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:35:16,324 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 07:35:16,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 07:35:16,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 07:35:16,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 07:35:16,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 07:35:16,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 07:35:16,373 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-14 07:35:16,374 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 07:35:16,374 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 07:35:16,374 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 07:35:16,374 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 07:35:16,374 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 07:35:16,374 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-14 07:35:16,375 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 15) the Hoare annotation is: true [2020-10-14 07:35:16,375 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 15) no Hoare annotation was computed. [2020-10-14 07:35:16,375 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-10-14 07:35:16,375 INFO L268 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-10-14 07:35:16,375 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (= 15 main_~input~0) [2020-10-14 07:35:16,375 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-10-14 07:35:16,375 INFO L268 CegarLoopResult]: For program point L12-2(lines 9 15) no Hoare annotation was computed. [2020-10-14 07:35:16,376 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2020-10-14 07:35:16,376 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2020-10-14 07:35:16,376 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2020-10-14 07:35:16,376 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (= |id_#in~x| id_~x) [2020-10-14 07:35:16,376 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-14 07:35:16,376 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-10-14 07:35:16,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:35:16 BoogieIcfgContainer [2020-10-14 07:35:16,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:35:16,404 INFO L168 Benchmark]: Toolchain (without parser) took 32244.95 ms. Allocated memory was 146.3 MB in the beginning and 699.9 MB in the end (delta: 553.6 MB). Free memory was 102.6 MB in the beginning and 471.9 MB in the end (delta: -369.3 MB). Peak memory consumption was 184.3 MB. Max. memory is 7.1 GB. [2020-10-14 07:35:16,405 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 07:35:16,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.93 ms. Allocated memory is still 146.3 MB. Free memory was 102.2 MB in the beginning and 93.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2020-10-14 07:35:16,406 INFO L168 Benchmark]: Boogie Preprocessor took 22.99 ms. Allocated memory is still 146.3 MB. Free memory was 93.2 MB in the beginning and 91.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-10-14 07:35:16,407 INFO L168 Benchmark]: RCFGBuilder took 312.01 ms. Allocated memory was 146.3 MB in the beginning and 200.8 MB in the end (delta: 54.5 MB). Free memory was 91.5 MB in the beginning and 168.2 MB in the end (delta: -76.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-10-14 07:35:16,409 INFO L168 Benchmark]: TraceAbstraction took 31608.83 ms. Allocated memory was 200.8 MB in the beginning and 699.9 MB in the end (delta: 499.1 MB). Free memory was 168.2 MB in the beginning and 471.9 MB in the end (delta: -303.7 MB). Peak memory consumption was 195.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:35:16,416 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 295.93 ms. Allocated memory is still 146.3 MB. Free memory was 102.2 MB in the beginning and 93.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.99 ms. Allocated memory is still 146.3 MB. Free memory was 93.2 MB in the beginning and 91.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 312.01 ms. Allocated memory was 146.3 MB in the beginning and 200.8 MB in the end (delta: 54.5 MB). Free memory was 91.5 MB in the beginning and 168.2 MB in the end (delta: -76.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31608.83 ms. Allocated memory was 200.8 MB in the beginning and 699.9 MB in the end (delta: 499.1 MB). Free memory was 168.2 MB in the beginning and 471.9 MB in the end (delta: -303.7 MB). Peak memory consumption was 195.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.4s, OverallIterations: 17, TraceHistogramMax: 17, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 516 SDslu, 2213 SDs, 0 SdLazy, 1361 SolverSat, 133 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 697 GetRequests, 336 SyntacticMatches, 2 SemanticMatches, 359 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1190 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 11 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 27.6s InterpolantComputationTime, 1037 NumberOfCodeBlocks, 1037 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1020 ConstructedInterpolants, 0 QuantifiedInterpolants, 208344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 2379/4624 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...